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struct big
{
int data[1000000];
};
struct small
{
int data[10];
};
union both
{
struct big big;
struct small small;
};
extern void *calloc (__SIZE_TYPE__, __SIZE_TYPE__);
extern void free (void *);
static int __attribute__((noinline))
foo (int fail, union both *agg)
{
int r;
if (fail)
r = agg->big.data[999999];
else
r = agg->small.data[0];
return r;
}
int main (int argc, char *argv[])
{
union both *agg = calloc (1, sizeof (struct small));
int r;
r = foo ((argc > 2000), agg);
free (agg);
return r;
}
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